How can I get rid of these preview lines in blend

Question

Hi,I am seeing these unknown preview lines while using blending option. The same is not visible when I am turning to CPU preview.So this might be linked with GPU preview. I have right now updated the GPU driver too and still seeing these lines. I have also checked it with latest version of illustrator too. i9, 16GB, W10, Illustrator v2021 What can be the issue here?

Jacob Bugge · Accepted Answer

You are welcome, StarAG, and thank you for sharing.

Just as the general preferences can get corrupted (making it impossible to work in any and all documents) and require resetting, each document can get corrupted.

Sometmes, as in your case, everything can be copied over.

In other cases, some specific part(s) of the artwork are ailing and need replacing, and then it is necessary to copy the sound parts of the artwork over in suitable chunks and check in between to see what can be rescued. This can take some time.

Jacob Bugge · Answer

StarAG,

GPU is fast, but sometimes it moves in mysterious ways. There have been countless questions about it here, ever since it first appeared.

If the artwork looks fine in CPU and works fine in actual print or other use, there is no need to worry.

Can you show how it looks in CPU, too?

It simply looks like too few steps in the Blend, some 13.

What happens if you set Specified Steps to a much larger number such as 256 in Blend Options?

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